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Lead Data Engineer

United Kingdom, Belfast · Job Posted January 15, 2026
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Job Description

Data is a vital part of our business and with your help, we can improve the services that we provide to our customers through engineering excellence of our data products. You’ll be working on exciting data products which support TV, Broadband, Digital Voice and market leading technologies like Unbreakable Wifi. We deliver these critical services using the latest cloud technologies on AWS, GCP and Cloudera. We are hiring a Lead Data Engineer to join our brilliant team. When you join us as a Lead Data Engineer, you’ll have the opportunity to be part of our Data & AI Enablement Team where you will help to design, build, and support high quality engineering products from our extensive data sources and multi-cloud environment. As a team we believe in the agile principles of openness, transparency and continuous improvement, which underpin strong relationships with our business stakeholders. There will be lots of opportunities to explore new technologies, develop new skills, innovate and grow as an engineer.

Job Responsibility

  • Design, build, and lead on the development and support of scalable data products for our business stakeholders
  • Agile development through story planning, estimation and retrospectives
  • Lead the continual improvement of our solutions, i.e. process improvements / operational monitoring / automation opportunities / security
  • Provide leadership to our other Data engineering development and support team, contribute to upkeep of our strategic data platform architecture, the data engineering community and associated standards
  • Collaborate with architects, designers, analysts, product specialists, other software and data engineers – in the support of our data products
  • Continual improvements using engineering excellence best practices
  • Demos and knowledge transfers to stakeholders around product developments
  • Spread your experience and knowledge to junior engineers
  • Improve automated testing and deployments using CI/CD pipelines
  • Expectation to line manage small team of junior data engineers
  • Continual learning through internal and external training

Requirements

  • Use of Hadoop / GCP /or AWS to build Big Data solutions
  • Skilled in using some of these technologies such as Spark, Terraform, Kafka, Kinesis, BigQuery, Dataflow, and SQL
  • Proficient in programming languages such as Scala, Java, or Python
  • Experienced in designing, building, and maintaining scalable data pipelines and applications
  • Hands-on experience with Continuous Integration and Deployment strategies
  • Solid understanding of Infrastructure as Code tools
  • Experienced in using Confluence, JIRA, or other Atlassian tools
  • Knowledgeable in software version control with Git or SVN
  • Capable of presenting technical issues and successes to team members and Product Owners
  • Has experience of people management or desire to manage individuals on the team

Nice to have

  • Experience with Glue, Lambda, Kubernetes
  • Enthusiastic about learning and applying new technologies (growth mindset)
  • Ability to build new solutions and support our data solutions/products

What we offer

  • 10% on target bonus
  • BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
  • Life Assurance Cover
  • Exclusive colleague discounts on our latest and greatest BT broadband packages, BT TV with TNT Sports and NOW Entertainment
  • From January 2025, equal family leave: receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the statutory rate. It’s for all parents, no matter how your family is made up
  • Enhanced women’s health support: including help with menopause symptoms, cancer screenings, period care and more
  • 25 days annual leave (not including bank holidays), increasing with service
  • 24/7 private virtual GP appointments for UK colleagues
  • 2 weeks carer’s leave
  • World-class training and development opportunities

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